Here's what rhymes with imperforable.
double bubble rubble stubble publ addable trouble damnable friable imperturbable indissoluble dirigible attachable playable vocable acquirable flyable tamable imperishable redouble nonviable unnameable unplayable vincible beatable dividable unloveable conformable uncharitable translatable unbridgeable filtrable containable ignitable unlikable exploitable untranslatable indemonstrable unarguable compoundable transmutable Words that almost rhyme with imperforable
couple subtle shuttle muddle puddle suppl supple huddle scuttle tuple cuddle cudgel rappel fuddle uncouple oversubtle rebuttal thermocouple decouple befuddle muscle humble tunnel puzzle bustle funnel muzzle shovel tumble buckle chuckle jumble rumble rustle shuffle stumble tional hovel hustle knuckle muffle mussel ruffle scuffle smuggle subtile fumble juggle mumble phrasal suckle tussle bumble caecal runnel snaffle snuggle guzzle nuzzle pummel duckbill gunnel snuffle tamale tousle gumball tubful struggle bundle frontal jungle fungal crumble ductile bestowal ductal grumble pustule truffle bungle truckle lungful rumple unbuckle jugful tumbrel mugful kerfuffle autumnal colourful crustal nuptial lustful crumple reshuffle trundle nonvocal cupsful pinocle triumphal prefrontal conformal honeysuckle peduncle suboptimal trustful prenuptial duodecimal disgruntle subcortical antifungal distrustful carbuncle heptagonal mistrustful granduncle